Nina Wilson (born 10 August 1999), also known by her stage name Ninajirachi, is an Australian electronic DJ and producer.

Wilson achieved breakthrough success with her 2017 single "Pure Luck" featuring Freya Staer, which received high rotation on triple j. Nina was a finalist in triple j’s Unearthed High competition in both 2016 and 2017. She released her debut EP Lapland in 2019. In 2021, her collaborative EP True North with Kota Banks was named the 8th best album of the year by The Atlantic.

In 2021, Ninajirachi developed the official demo project for Ableton Live 11, which was included for all users with the software's release, providing insights into her production techniques and demonstrating new features like comping, MPE, and updated audio effects.

In June 2023, Ninajirachi released "SHYPOP" with ISOxo. Ninajirachi's fourth EP 4x4 was released in November 2023.

Ninajirachi's fifth EP, Girl EDM was released on 14 May 2024 .